Improvement in plow-points



T. S URIE.

PLOW-POINT.

Pat-entad'Dec.14, 1875.

' INVENTOR 2%, @W

WITNESSES ATTORN EYS N.PETERS. PHOTO-UTHOGRAFKER. WASHINGTONv D C UNITEDSTATES PATENT OFFICE.

THOMAS S. UBIE, OF CARSON CITY, MICHIGAN.

IMPROVEMENT 'lN PLOW-POINTS.

Specification forming part of Letters Patent No. 171,068, dated December14, 1875; application filed April 24, 1875.

To all whom it may concern.-

Be it known that I, THOMAS S. URIE, of Carson City, in the county ofMontcalm and State of Michigan, have invented a new and valuableImprovement in Plow-Points; and I do hereby declare that the followingis a full, clear, and exact description of the construction andoperation of the same, reference being had to the annexed drawings,making a part of this specification, and to the letters and figures ofreference marked thereon.

Figure l of the drawing is a representation of a longitudinal section ofmy plowpoint, and Fig. 2 is a plan view of the same. Fig. 3 is asectional detail view.

This invention has relation to means to prevent the undue wearing awayof the share and nose of a cast-iron point and it consists in theconstruction and novel arrangement of the steel-share edge let into therabbeted edge of the casting, and the split or angular steelpointadapt-ed to embrace the point of the casting, as hereinafter fully shownand described.

In the accompanying drawings, the letter A designates the point-casting,whereof the nose or point a is drawn out thin in the casting, andrabbeted above and below at b b, as indicated in the drawings. The share0 is also rabbeted on its upper surface. On the under side of thecasting the filling 6, between the point-plate and landside flange,serves to strengthen this portion materially. B designates the steelshare. This is a comparative- 1y thin plate of steel let into therabbeted edge 0 of the casting, so that its surface will -he flushtherewith and firmly secured thereto by studs or rivets h h. C indicatesthe steel point. This consists of an angular piece of steel drawn to anedge at one end, and at the other divided and separated into an upperbranch, 70, and a lower branch, I, which are designed to be seated,respectively, in the upper and lower rabbets of the nose of the casting,the lower branch 1 covering underneath the filling c. This steel pointis designed to be rigidly secured to the casting by rivets or studs.This may be done in the following manner when the point is cast: Thesteel nose having been provided with perforations through each branch,suitably countersunk on the outside, is placed on the pattern in thesand, and when the pattern is withdrawn is left therein. The point isthen cast by pouring the iron into the mold, and the holes through thebranches will receive studs of the metal, whereby the steel will befirmly se-' cured to the casting. The steel share may be attached in asimilar manner but riveting is here preferred, for convenience ofrepair. When the steel nose and share are not connected it is advisableto form a recessed groove, 2, in the .inside face of the steel nose toreceive a beveled end or tenon, z, of the share.

What I claim as new, and desire to secure by Letters Patent, is

The casting A, having point a, rabbets b b, and the strengtheningportion e, in combination with the angular steel point C, having upperbranch k, and lower branch Z, and rivets h h, constructed and arrangedsubstantially as described, and for the purpose set forth.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

THOMAS s. URIE.

